Q10 of 61 Page 63

Concave mirrors are used by dentists to examine teeth. Why?

Concave mirror produces virtual, erect and magnified images when a object is placed in between focus and pole. That’s the reason why dentists use concave mirror to examne teeth.


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8

Why does a ray of light bend when it travels from one medium to another?

 9

What is the speed of light in a vacuum? Who first measured the speed of light?

 1

a) Complete the diagram to show how a concave mirror forms the image of the object.

b) What is the nature of the image?



 2

Pick out the concave and convex mirrors from the following and tabulate them

Rear-view mirror, Dentist’s mirror, Torch-light mirror, Mirrors in shopping malls, Make-up mirror.